Home / 18,835.20-25,985.40-10,874.52

Finding the Fourth Proportional to 18,835.20, 25,985.40 and 10,874.52

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Solution

The fourth proportional to 18,835.20, 25,985.40 and 10,874.52 is: 15,002.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,835.20 : 25,985.40 = 10,874.52 : x
  2. Step 2: Convert to fraction form
    18,835.20/25,985.40 = 10,874.52/x
  3. Step 3: Cross multiply
    18,835.20x = 25,985.40 × 10,874.52
  4. Step 4: Simplify right side
    18,835.20x = 282,578,752.01
  5. Step 5: Solve for x
    x = 282,578,752.01/18,835.20
  6. Step 6: Final answer
    x = 15,002.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.